CN106758475A - The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced - Google Patents
The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced Download PDFInfo
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- CN106758475A CN106758475A CN201611241590.2A CN201611241590A CN106758475A CN 106758475 A CN106758475 A CN 106758475A CN 201611241590 A CN201611241590 A CN 201611241590A CN 106758475 A CN106758475 A CN 106758475A
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- tail
- slurry
- screening process
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- slurrying
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
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- Mechanical Engineering (AREA)
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Abstract
A kind for the treatment of recovery method of the tail slurry the present invention relates to be produced in paper mill slurrying screening process, comprises the following steps：（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, a vibrating sieving machine is connected in conveyer discharge outlet, tail-rotor is entered vibrating sieving machine；（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；（3）By step（2）In isolated good slurry and water be placed in recycling bin, then re-used with being pumped back in slurrying screening process.Good slurry fully can be separated using the method by recycling from tail slurry, reduced and be lost in；Tail slurry moisture content can also be reduced, the purpose of dry row is reached, further improves production on-site environment.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to the tail slurry produced in a kind of paper mill slurrying screening process
Treatment recovery method.
Background technology
Paper, is one important invention of ancient Chinese Han nationality working people, is one of four inventions of ancient Chinese, is made
Paper art and compass, gunpowder, together, the prosperity to ancient Chinese culture provides the basis of material technology to the art of printing.The hair of paper
It is bright to finish the complicated history of ancient times letter wooden tablets or slips for writing, greatly facilitate the propagation and development of culture.Paper be in our daily lifes most
Conventional article, reads, reads newspaper or writes, draws a picture and all obtain and paper contact.In industry, agricultural and national defense industry production
In, also it be unable to do without paper.
Modern Paper making procedure such as can be divided into slurrying, modulate, manufacture paper with pulp, processing at the key step.Wherein, slurrying is the of papermaking
One step, slurrying：Refer to that the method combined using chemical mode of method or machinery or both makes plant fiber material dissociate change
Into unbleached paper slurry（Brown stock）Or further bleaching becomes the production process of bleached pulp.The general side for converting wood into paper pulp
Method has three kinds of mechanical pulping method, chemical pulping method and semichemical pulping method etc..The basic procedure of slurrying is：Log storage → sawmilling
→ peeling, except saving → chip → boiling → washing → screening, purification → bleach → bleach pulpboard → dipping and defibrination → natural color pulp
Plate.Wherein, the effect of log storage is：1. normally continuously production 2. improves material quality to safeguard factory.Log storage mode
Typically have：Water storage and land storage.Sawmilling：Log must be sawn into certain length, to meet the requirement of follow-up workshop section.
Wood chipping equipment requirement log 2-2.5m of length, 0.6-1.2m of mill requirement log length.Peeling：Due to the fiber content of bark
Low, impurity content is high, can reduce boiling efficiency, increases the consumption of boiling medicine, and dust increases in paper pulp, intensity decreases.Therefore
It is general to require to remove crust in quality of production requirement paper pulp higher.Except section：Burl is to grinding stone during in order to avoid juggle ground wood
With the influence of pulp quality, sending to the juggle of mill also needs to remove burl.Chip：In order to adapt to chemical wood pulp boiling and satisfaction
The production of chip groundwood is needed, and log will be chipped, and the wood chip for cutting out wants length thickness consistent, neatly, chip dimensions one
As be：15-20mm, 3-5mm of thickness long, although width is not limited, are usually no more than 20mm, want rotary strainer to screen after chipping, log
Chip acceptable ratio requirement is more than 85%.Slurrying is an important processing step of papermaking, but existing pulping technique technique
In, substantial amounts of fuel is consumed, ample resources and water are wasted, while large quantity of exhaust gas, waste water and waste residue are produced, and production cost
Height, environmental pollution is than more serious.Therefore, for waste water and dregs of generation etc. in pulping process, rationally effective treatment is carried out,
Waste is utilized, waste could be reduced, reduce production cost, reduce the pollution to environment.
Wherein, it is that, because raw material is in digestion process, some liquids are difficult to permeate that slurrying screening process sifts out the tail slurry for coming
Slag section, and and it is solid mix with liquid it is uneven fail fully well-done fibre bundle, discharge through screening obtained by, account for total slurrying
7~l0% of amount, because the slightly more difficult bleaching of slurry of this part, can form pulp dirt, so to be needed as far as possible before bleaching process
Remove.And slurrying screening process sifts out the tail slurry for coming and need to recycle.But, in existing paper mill production process,
Due to being influenceed by place locus, tail slurry sift out come it is latter as deliver to outdoor after having net conveying worm drainage, then
Drive to transport to place placement after.But due to various factors, the tail slurry for screening is larger containing good slurry and moisture content（Good slurry is about
20%）.There is net conveying worm mesh to be frequently occluded, drainage effect is poor, though through drainage, 20% is still kept containing good slurry amount and moisture content
With 95%.One car more than ten minutes can be filled, and such as car is scooped out not in time, and tail slurry can only fall on the ground, strong influence
Production on-site environment, and tail-rotor is directly transported to after corresponding place is placed and processed again, not only production cost is high,
And the good slurry in tail slurry could not be made sufficiently to be recycled, cause to waste.Therefore, a kind of place for screening tail slurry is developed
Reason recovery method, fully separates good slurry from tail slurry and returns to flow, reduces and is lost in, and reduces tail slurry moisture content, and improvement is made
The production environment of paper plant, reduce production cost and very big effect is all played in the recycling to resource, but in existing document
In, the relevant report that the tail slurry to being sifted out in slurrying screening process is directly processed recovery method is also fewer.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of paper mill slurrying screening process in produce
The treatment recovery method of tail slurry.Using the method to sifted out in slurrying screening process come tail slurry process, can be from tail slurry
Good slurry is fully separated recovery and returns to flow, reduced and be lost in；Tail slurry moisture content is reduced, the purpose of dry row is reached, so as to enter one
The improvement production on-site environment of step, reduces environmental pollution, reduces production cost.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind for the treatment of recovery method of the tail slurry that paper mill slurrying screening process is produced, comprises the following steps：
（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, connect one in conveyer discharge outlet and shake
Screen(ing) machine, makes tail-rotor enter vibrating sieving machine；
（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；
（3）By step（2）In isolated good slurry and water be placed in recycling bin, then with being pumped back in slurrying screening process
Re-use, reduce and be lost in.
In the treatment recovery method of the tail slurry that above-mentioned paper mill slurrying screening process is produced, the sieve of described vibrating sieving machine
A diameter of 6mm, sieve mesh number is 2 mesh, and sieve number of revolutions is 1000-2000 revs/min.
Beneficial effects of the present invention are：
1st, using method of the invention, it is possible to sufficiently good slurry is separated from tail slurry, the good slurry in tail slurry is reclaimed, is improved
Pulp yield, allows good slurry to return to flow, reduces and is lost in, and resource is fully utilized, and reduces the cost of production；Using this
Method can make the tail slurry that slurrying screening process in paper mill is produced obtain treatment recovery well, and the method seems simple, but in reality
Very big economic benefit and environmental-protection function is generated in the production of border.
2nd, after using the method for the present invention, by treatment, good slurry content and moisture content are all bright in the thick slag separated for tail-rotor
Aobvious to decline, by detection, the content of good slurry drops to less than 1% in the thick slag separated, and moisture content drops to 79% by original 95%
Hereinafter, the purpose of dry row has been basically reached, because thick pulp water part is few, loading time extension is readily transported, thick in transportation
Water in slag will not everywhere drip with car, serve the effect of environmental protection；And when vehicle is scooped out not in time, can be in thick slag discharging opening
Lower placement container, to receive the thick slag for falling, even if tailings falls earthward accidentally, is also easy to cleaning, using side of the invention
Method substantially improves the environment of paper mill production scene.
Brief description of the drawings
Fig. 1 is the process chart of the treatment recovery method of the tail slurry that slurrying screening process in paper mill of the present invention is produced.
Specific embodiment
Embodiment 1
A kind for the treatment of recovery method of the tail slurry that paper mill slurrying screening process is produced, comprises the following steps：
（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, connect one in conveyer discharge outlet and shake
Screen(ing) machine, makes tail-rotor enter vibrating sieving machine；The screen diameter of described vibrating sieving machine is 6mm, and sieve mesh number is 2 mesh, sieve number of revolutions
It is 1000 revs/min；
（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；
（3）By step（2）In isolated good slurry and water be placed in recycling bin, then with being pumped back in slurrying screening process
Re-use, reduce and be lost in.
Embodiment 2
A kind for the treatment of recovery method of the tail slurry that paper mill slurrying screening process is produced, comprises the following steps：
（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, connect one in conveyer discharge outlet and shake
Screen(ing) machine, makes tail-rotor enter vibrating sieving machine；The screen diameter of described vibrating sieving machine is 6mm, and sieve mesh number is 2 mesh, sieve number of revolutions
It is 1480 revs/min；
（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；
（3）By step（2）In isolated good slurry and water be placed in recycling bin, then with being pumped back in slurrying screening process
Re-use, reduce and be lost in.
Embodiment 3
A kind for the treatment of recovery method of the tail slurry that paper mill slurrying screening process is produced, comprises the following steps：
（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, connect one in conveyer discharge outlet and shake
Screen(ing) machine, makes tail-rotor enter vibrating sieving machine；The screen diameter of described vibrating sieving machine is 6mm, and sieve mesh number is 2 mesh, sieve number of revolutions
It is 2000 revs/min；
（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；
（3）By step（2）In isolated good slurry and water be placed in recycling bin, then with being pumped back in slurrying screening process
Re-use, reduce and be lost in.
Application effect is tested
The treatment recovery method of the tail slurry that slurrying screening process in paper mill of the invention is produced is in the expensive sugar in Guangxi（Group）Share
Co., Ltd is tested, and slurrying screening process sifts out the tail slurry for coming and needs to recycle, before, the expensive sugar in Guangxi（Group）Share has
Limit company is to deliver to outdoor through the net conveying worm drainage that has of two 8 meters long of 400 millimeters of diameters after tail slurry is sifted out, then is used
After drive to transport to place placement.Due to various factors, the tail slurry for screening is larger containing good slurry and moisture content（Good slurry about 20%, moisture content
About 95%）, there is net conveying worm mesh to be frequently occluded, drainage effect is poor, though through drainage, and due to tail-rotor containing good slurry amount and
Moisture content is very big, drives to fill for 15 minutes after one, is driven to scoop out not in time as after, and tail slurry can only fall on the ground, greatly
Influence production on-site environment.After using the inventive method to tail-rotor treatment, tail slurry result is：The treatment effect of tail slurry
Fruit is greatly improved, and the good slurry and water separated return to flow, reduces and is lost in, and resource has been obtained sufficient profit
With reducing the cost of production；By detection, the content of good slurry drops to less than 1% in the thick slag that tail-rotor is separated, moisture content by
95% originally drops to less than 79%, basically reaches the purpose of dry row, and front and rear comparison production site environment has obtained radical change.
The method has obtained everybody consistent favorable comment.
Claims (2)
1. the treatment recovery method of the tail slurry that a kind of paper mill slurrying screening process is produced, it is characterised in that comprise the following steps：
（1）After the tail slurry that slurrying screening process is produced is transported out through conveyer, connect one in conveyer discharge outlet and shake
Screen(ing) machine, makes tail-rotor enter vibrating sieving machine；
（2）Tail-rotor only remains thick slag by isolating good slurry and water after vibrating sieving machine, is then transported with the thick slag of rear-guard handlebar；
（3）By step（2）In isolated good slurry and water be placed in recycling bin, then with being pumped back in slurrying screening process
Re-use.
2. the treatment recovery method of the tail slurry that slurrying screening process in paper mill according to claim 1 is produced, its feature exists
In the screen diameter of described vibrating sieving machine is 6mm, and sieve mesh number is 2 mesh, and sieve number of revolutions is 1000-2000 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241590.2A CN106758475A (en) | 2016-12-29 | 2016-12-29 | The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241590.2A CN106758475A (en) | 2016-12-29 | 2016-12-29 | The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced |
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| CN106758475A true CN106758475A (en) | 2017-05-31 |
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ID=58923571
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611241590.2A Pending CN106758475A (en) | 2016-12-29 | 2016-12-29 | The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505382A (en) * | 2018-01-31 | 2018-09-07 | 合肥银山棉麻股份有限公司 | Tail pulp recovery goal method |
| CN110396845A (en) * | 2019-07-16 | 2019-11-01 | 山鹰国际控股股份公司 | A kind of tail slurry recovery and processing system for pulping and paper-making |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137599A (en) * | 1988-10-03 | 1992-08-11 | Prime Fiber Corporation | Conversion of pulp and paper mill sludge to papermaking pulp |
| CN102154892A (en) * | 2011-03-31 | 2011-08-17 | 重庆理文造纸有限公司 | Process for screening bamboo wood dissolving pulp |
| CN202000186U (en) * | 2010-12-08 | 2011-10-05 | 中冶纸业银河有限公司 | Recovery device for tailings of waste paper |
| CN204251945U (en) * | 2014-11-17 | 2015-04-08 | 东莞理文造纸厂有限公司 | A kind of cyclic processing device of papermaking slag slurry |
| CN105887545A (en) * | 2016-04-21 | 2016-08-24 | 莆田市凤翔纸品精制有限公司 | Paper pulp slag removal equipment for cleaning paper pulp tailings |
| CN106223094A (en) * | 2016-07-29 | 2016-12-14 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
-
2016
- 2016-12-29 CN CN201611241590.2A patent/CN106758475A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137599A (en) * | 1988-10-03 | 1992-08-11 | Prime Fiber Corporation | Conversion of pulp and paper mill sludge to papermaking pulp |
| CN202000186U (en) * | 2010-12-08 | 2011-10-05 | 中冶纸业银河有限公司 | Recovery device for tailings of waste paper |
| CN102154892A (en) * | 2011-03-31 | 2011-08-17 | 重庆理文造纸有限公司 | Process for screening bamboo wood dissolving pulp |
| CN204251945U (en) * | 2014-11-17 | 2015-04-08 | 东莞理文造纸厂有限公司 | A kind of cyclic processing device of papermaking slag slurry |
| CN105887545A (en) * | 2016-04-21 | 2016-08-24 | 莆田市凤翔纸品精制有限公司 | Paper pulp slag removal equipment for cleaning paper pulp tailings |
| CN106223094A (en) * | 2016-07-29 | 2016-12-14 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505382A (en) * | 2018-01-31 | 2018-09-07 | 合肥银山棉麻股份有限公司 | Tail pulp recovery goal method |
| CN110396845A (en) * | 2019-07-16 | 2019-11-01 | 山鹰国际控股股份公司 | A kind of tail slurry recovery and processing system for pulping and paper-making |
| CN110396845B (en) * | 2019-07-16 | 2021-08-03 | 山鹰国际控股股份公司 | Tail pulp recovery processing system for pulping and papermaking |
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Application publication date: 20170531 |
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